wild services support

testApp/remote/rpcWildServiceExample.cpp

@@ -0,0 +1,48 @@
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * pvAccessCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+
+#include <pv/pvData.h>
+#include <pv/rpcServer.h>
+
+using namespace epics::pvData;
+using namespace epics::pvAccess;
+
+static Structure::const_shared_pointer resultStructure =
+        getFieldCreate()->createFieldBuilder()->
+               add("channelName", pvString)->
+               createStructure();
+
+class WildServiceImpl :
+    public RPCService
+{
+    PVStructure::shared_pointer request(PVStructure::shared_pointer const & pvArguments)
+        throw (RPCRequestException)
+    {
+        // requires NTURI as argument
+        if (pvArguments->getStructure()->getID() != "uri:ev4:nt/2012/pwd:NTURI")
+            throw RPCRequestException(Status::STATUSTYPE_ERROR, "RPC argument must be a NTURI normative type");
+
+        std::string channelName = pvArguments->getSubField<PVString>("path")->get();
+        
+        // create return structure and set data
+        PVStructure::shared_pointer result = getPVDataCreate()->createPVStructure(resultStructure);
+        result->getSubField<PVString>("channelName")->put(channelName);
+        return result;
+    }
+};
+
+int main()
+{
+    RPCServer server;
+
+    server.registerService("wild*", RPCService::shared_pointer(new WildServiceImpl()));
+    // you can register as many services as you want here ...
+
+    server.printInfo();
+    server.run();
+
+    return 0;
+}